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Keyword: Populus tremuloides

Tree-ring-based reconstructions of historical fire regimes for quaking aspen, Great Basin bristlecone pine and mountain sagebrush communities

Projects Posted on: August 07, 2019
Tree-ring based fire histories from Utah and Nevada reveal multi-century fire patterns for quaking aspen, mountain sagebrush and Great Basin bristlecone pine communities.

Test-driving a roadmap for quaking aspen restoration

Science Spotlights Posted on: July 24, 2019
Quaking aspen is the most widely distributed tree species in North America. Healthy aspen forests are highly productive and support greater biodiversity than any other upland forest type in the Intermountain West. Overall, quaking aspen has been in decline throughout much of the Region and is in need of restorative intervention.

Wildfire alters belowground and surface wood decomposition on two national forests in Montana, USA

Publications Posted on: June 26, 2019
Wildfires can drastically alter belowground processes such as organic matter (OM) decomposition.

Guidelines for aspen restoration in Utah with applicability to the Intermountain West

Publications Posted on: May 07, 2019
As highly productive and biologically diverse communities, healthy quaking aspen (Populus tremuloides; hereafter aspen) forests provide a wide range of ecosystem services across western North America. Western aspen decline during the last century has been attributed to several causes and their interactions, including altered fire regimes, drought, excessive use by domestic and wild ungulates, and conifer encroachment.

Modelling the management of forest ecosystems: Importance of wood decomposition

Publications Posted on: May 10, 2018
Scarce and uncertain data on woody debris decomposition rates are available for calibrating forest ecosystem models, owing to the difficulty of their empirical estimations.

Influence of climate on the growth of quaking aspen (Populus tremuloides) in Colorado and southern Wyoming

Publications Posted on: January 10, 2017
We analyzed a series of increment cores collected from 260 adult dominant or co-dominant quaking aspen (Populus tremuloides Michx.) trees from national forests across Colorado and southern Wyoming in 2009 and 2010. Half of the cores were collected from trees in stands with a high amount of crown dieback, and half were from lightly damaged stands.

Group clearfell harvest can promote regeneration of aspen forests affected by sudden aspen decline in western Colorado

Publications Posted on: August 20, 2016
An experimental assessment of the use of clearfell harvesting to initiate a regeneration response in commercially managed aspen forests affected by sudden aspen decline (SAD) was conducted in western Colorado in cooperation with the USDA Forest Service. Nine pure commercial quality aspen stands, with three levels of mortality attributed to SAD, were selected (three replicates per mortality level).

Does clear-cut harvesting accelerate initial wood decomposition? A five-year study with standard wood material

Publications Posted on: June 07, 2016
Coarse woody debris (CWD) serves a variety of ecological functions in forests, and the understanding of its decomposition is needed for estimating changes in CWD-dependent forest biodiversity, and for the quantification of forest ecosystem carbon and nutrient pools and fluxes.

Herbivory and advance reproduction influence quaking aspen regeneration response to management in southern Utah, USA

Publications Posted on: May 27, 2016
Recent concern regarding the potential decline of quaking aspen (Populus tremuloides Michx.) forests in the western United States has sparked concern over whether the species can be effectively regenerated. Using a retrospective approach, we quantified the response of regenerating aspen stems to an ordinary set of silvicultural treatments conducted over approximately the past decade in southern Utah, USA.

Using Forest Health Monitoring to assess aspen forest cover change in the southern Rockies ecoregion

Publications Posted on: May 12, 2016
Long-term qualitative observations suggest a marked decline in quaking aspen (Populus tremuloides Michx.) primarily due to advancing succession and fire suppression. This study presents an ecoregional coarse-grid analysis of the current aspen situation using Forest Health Monitoring (FHM) data from Idaho, Wyoming, and Colorado.

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